Draft-equalizer.



Patented Feb. 25, I902. J. J. COX. DRAFT EflUALIZER.

(Application filed June 8, 1901.) (No mow.)

: NORRIS vzvzu; co imaroumod msuluumu n c UNITED STATES PATENT OFFICE.-

JOSHUA J. COX, OF WRIGHTS VILLE, ILLINOIS.

DRAFT-EQUALIZER.

SPECIFICATION forming part of Letters Patent No. 693,840, dated February25, 1902 Application filed June 8, 1901.

To all whom it may concern.-

Be it known that I, JOSHUA J. COX, a citizen of the United States,residing at Wrightsville, in the county of Greene and State of Illinois,have invented certain new and useful Improvements in Draft-Equalizers,of which the following is a specification.

My invention relates to improvements in draft-equalizers; and the objectof my invention is the provision of a draft-equalizer which will insurean even and equal draft upon the horses and which will be of simple,inexpensive, and practical construction.

With this object in view my invention consists of a draft-equalizerembodying novel features of construction and combination of parts,substantially as disclosedherein.

Figure 1 represents a plan view of my draftequalizer. Fig. 1" is an edgeView of the long and short arms with the pole in vertical crosssection.Fig. 2 represents a detail view of a portion of my equalizer, and Fig. 3represents a plan view of a modified form of my invention.

My draft-equalizer is specially constructed for three horses andcomprises the three singletrees A, of the same size, arranged in line,the outer trees having the central connection B with the short arms C,which are hinged to the pole D, and the central singletree having thedouble central connection E with the long arms F, which are also pivotedat their outer ends to the pole D. As seen in Fig. 1,

the long and short arms are composed of plates or bars secured to thepole and at their outer ends secured to each other, being spaced byspacing-blocks, as shown, the two plates or bars of each arm beinginclined with relation to each other. From this construction it will beseen that the singletrees are arranged in line and that when the draftis upon them the connection with the hinged or pivoted short and longarms, which are connected to the poles, will cause the three singletreesto distribute the draft evenly upon each horse, and thus preventimproper strain upon any one of the animals, and also that my novelconstruction and arrangement will enable the horses to pull in astraight course and start Serial No. 62,911. (No model.)

the vehicle or agricultural machine to which the draft is applied withease.

In Fig. 2 I show the pivoted portion of the arms at the pole providedwith a cushion or spring G, which will make the arms work with a softand yielding action.

The arms in theform seen in Fig. 1 are deflected so as to bring thesingletrees in a plane below that of the poles, which I have found givesgreater strength and takes the weight from the horses.

In the form of my invention shown in Fig. 3, which is particularlyadapted for agricul tural machinery- -such as harrows, cultiva tors, andlike machinery-J employ the two bars or rails H of equal size, and tosaid bars nearer their outer ends I connect the ring clevises J, whichare connected to the harrow or other implement, and, as in the otherform, I use the three similar singletrees K, which are connected to thebars in the same man nor by the central connection L and the endconnections M, the main point in this form being the placing of theclevises nearer the outer ends of the bars, which avoids the zigzagmotion so common where the connection is made directly at the center inthe use of three singletrees.

In use the three horses are attached to the three singletrees, and whenthey start the draft is evenly distributed upon said trees, which alltake their even part of the draft, which is accomplished by the peculiarconstruction and arrangement of the bars, as is evident.

I claim In a-draft-equalizer, the combination with a pole, of long andshort arms secured thereto and consisting of the oppositely-disposedinclined plates secured together at their outer ends and spacing-blocksbetween said plates near their outer ends, all substantially as shownand described.

In testimony whereof I affix my, signature in presence of two witnesses.

JOSHUA J. COX.

Witnesses:

' W. R. J OLLEY,

W. B. TIETSORT.

